Machine for sticking the soles of shoes



Feb. 25, 1930. A. DEMNITZ 1,748,671

MACHINE FOR STICKING THE SOLES 0F SHOES Filed July 31, 1928 2Sheets-Sheet 2 J72 veal-0r JAE/5187" DE M IWTZ Patented Feb. 25, 1930PATENT OFFICE ALBERT DEMNITZ, OF DRESDEN-LAUBEGAST, GERMANY MACHINE FORSTICKING THE SOLES OF SHOES Application filed July 31, 1928, Serial No.296,612, and in Germany December 16, 1926.

My invention relates to improvements in shoe manufacturing machines, andhas particular reference to means for mountingand moving a plurality ofpresses used in sticking soles to the uppers of shoes so as to bring thepresses successively into an operative position,.,with a view toconserving space and enabling a maximum amount of work to beaccomplished within a minimum amount of time and with the expenditure ofa minimum amount of efi'ort on the part of the attendant of the presses.

My invention is illustrated by way of example in the accompanyingdrawings in which:

Fig. 1 is a front elevation of the machine;

Fig. 2, a vertical central section of Fig. 1; Fig. 3, an elevationillustrating a modification of the structure shown in Figs. 1 and 2;

Fig. 4, a detail sectional view illustrating another modification of thestructure shown in Figs. 1 and 2; and i Fig. 5, an elevationillustrating a further modification of the structure shown in Figs.

1 and 2.

At the upper end of the pillar or upright 1 a horizontall located pivot2 is arranged, u on which t 10 hub 3 of the ring-shaped carr1er 4 isrotatably mounted. ()n the inner circumferential face of this carrierthe separate presses 5, 5 are arranged. For the purpose of effecting asaving in weight the carrier 4 may be built up of angle-irons connectedwith each other and each having one of its flanges extended outward inradial direction (Fig. 2). The angle-iron adjacent to the illar orupright 1 is connected Wltll the-huh 3 by means of braces or spokes 6.The pivot 2 is provided with a passage 8 leading to the head of thepillar and th ls passage is connected by means of a stop-valve 10 withan accumulator for compressed air not shown) located preferabl in theinterior of the hollow cast-iron bory of the pillar 1.

4 Each of the pressin devices is connected with a distributor 7 by metalipe 9. The passage 8 for the compressed air is connected by a pipe 11with the air-inlet opening 12 of the cylinder 13' controlling thepneumatic device for driving means of a hose or the press-carrier. 14 isthe air outlet-openin g of the cylinder 13. Between these two openings ahose or pipe 15 is connected with the cylinder 13' which hose leads tothe working cylinder 16. In the cylinder 13 is arranged a piston rod 17,carrying two pistons 18 and 19 adapted to close and open the inlet andoutlet openings .12 and 14 respectively. The piston rod 17 has anextension 20, which extends outwardly through the lower cylinder-cover.A pressure-spring 21 is arranged between this cylinder-cover and thelower piston 19 around the extension 20 of the piston-rod 17 which isconnected by a joint 22 with a foot lever 23, journaled at 24 in thepillar 1. 'Pivotally connected with this footlever 23 is one end of alink 25, the other end of which is articulated to one arm of a bellcranklever 26. The other arm of this hellcrank lever is connected with alocking member consisting of a pin 27, which is adapted to engage withone of a series of holes 28, 28 provided at. the lateral face of theringshaped carrier 4.

The interior of the working cylinder 16 for ei'l'ecting the step by stepmovement of the press carrier 4: contains a piston 29, the rod 30 ofwhich is pivotally connected with the end of one arm'32 of a two armedlever jonrnaled in the pillar 1. Between the piston 29 and one cover ofthe cylinder 16 a pressure-spring 21 is arranged around the piston-rod30. The other arm 34 of the twoarmed lever is adapted to enter the pathof pawls 35, 35 pivotally arranged on a ring 36, secured to the spokes(i, (i of the carrier 4.

In machines with table-shaped carriers as shown in Fig. 3 the step bystep movement of the carrier may he eil'ected in substantially the samemanner, with the dill'erence only, that the working cylinder 16 isarranged in a somewhat other position than in the machine with avertically arranged car rier. In the example of Fig. 3 the cylinder 16is mounted on the pillar which sup orts the table 4-0 and the'piston rod30 of sa1d cylinder acts upon a hell-crank lever 37 journaled at 38, thefree end of which is adapted to enter the path of rockin pawls 39, 39which are securcdto the tab e 40. Instead of the controlling cylinder 13another controlling device, for instance a three-way cock 31 maybe'provided (Fig. 4).

The step by step movement of the press 5 carrier may also be obtained inanother manner, for instance by means of a control mechanism as shown inFig. 5.

This mechanism is similar to that shown in Figs. 1-3 only with thedifl'erence, that the piston rod 30 is articulated to the free end of acontrol lever 42, which has pivoted connection at 43 with a part 44,similar to a crane trolley. The hub portion 45 of the lever 42 isprovided with a pinching face which may engage with the outer surface ofthe rim 46, on the inner face of which two rollers 47 47 carried by thepart 44 are arranged to roll. The rim 46 is secured preferably to thespokes 6, 6 of the press carrier.

The operation of the machine is as follows:

By pressing down the foot-lever 23 the locking pin 27 is released fromthe hole 28 of the press carrier, so that this latter may be rotated.Downward movement of said foot 25 lever operates through the rod 20 toeflect downward movement of the pistons 18-19 1 until the former hasclosed the exhaust opening 14 and the latter has uncovered the inletopening 12, thereby placing the source of .30 compressed air incommunication with the cylinder 16. The working piston 29 therefore ismoved forward against the action of the spring 31 and brings thetwo-armed lever 32, 34 from the position shown by dotted lines 35 intothe full line position, in which the free end of the arm 34 is inengagement with one of the pawls 35. This pawl is rocked as the.

working piston 29 continues its movement, until it contacts with thecylindrical portion of the ring 36. At this moment the movement of thepress carrier for one step begins and upon completion of movement of thecar- .rier through an arc corresponding to the distance between anadjacent pair of the holes 28, the operator releases the foot lever 23,whereupon the pistons 18-19 are returned to normal position by thespring 21, restoring the original status of the apparatus with thecarrier advanced one step and locked against rotation by engagement ofthe pin 27 in a hole 28. At the same time also the distributing device 7rigidly connected with the hub 3 has turned for the same angle, so thatthe compressed air is now led through the stop valve 10 and the passage8 to the pressing pouch of the next following press 5 and becomes thereoperative.

This device for moving the carrier by steps may also be employed inmachines with tableshaped carriers, as shown in Fig. 3.

In the modified device shown in Fig. 5 the piston rod 30 of the workingcylinder 16 shifts in the proper moment the lever 42, so that the camface of the hub 45 is pressed toi wards the outer surface of the rim 46and the latter and therefore also the whole carrier is caused toparticipate in the movement ofthe working piston. When this movement isfinished the piston 30 of the working cylinder 16 returns by the actionof its spring to its initial position and takes along with it also thecontrolling lever 42.

This construction differs from that shown in-Figs. 1-3, that it cannotbe employed for machines with table-shaped carriers.

What I claim is:

1. In a machine for sticking the soles of footgear, the combination of aring-shaped carrier, a hub rotatably mounted on a stationary pivot,spokes connecting said hub with the carrier, a plurality of fluioperated pressing devices projecting towards the centre of said carrier,a stationary working cylinder with a piston therein, adapted to be actedupon by the same fluid as the pressing devices and adapted to rotatesaid carrier for one step, and means for governing the feeding anddischarging of said working fluid to and from the said pressing devicesfor operating the same.

2. In a machine for sticking the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressing devices,projecting towards the centre of said carrier, a stationary workingcylinder with a piston therein, a plurality of pawls, shiftably mountedon said carrier, a lever connected with said piston adapted to be rockedby the operation of said piston for rotating the carrier for one step,means for controlling the feeding and discharging of a working fluid toand from said stationary workin cylinder and means for controlling thefeedlng of the working fluid to the pressing devices.

3. In a machine for sticking the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressing devicesprojecting towards the centre of said carrier, a stationar workingcylinder with a piston therein, a ever connected with said pistonadapted to be rockedby the operation of said piston for rotatin saidcarrier for one step, a controlling cylinder having two openings thereinfor the inlet and outlet of a working fluid, two pistons arrangedon acommon piston rod, and controlling said inlet and outlet openings bytheir movement, the. outlet opening in said cylinder having an operative connection with said ressing devices, and means for actuatingsaid piston.

4. In amachine for sticking the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressing devicesprojecting towards the centre of said carrier, a stationary workingcylinder with a piston therein, a lever connected with said piston andadapted to rotate said carrier fcr one step on the operation of saidpiston, a device for controllin the feeding of a working fluid tc saidworking cylinder and from the carrier, a stationary working cylinderwith devices projecting towards the centre of said.

a piston therein, a controlling device for the feeding and dischargingof a working fluid to said working cylinder, and to one of said pressingdevices, means for operating said controldevice, and means operated bythe piston of said working cylinder to lock the carrier againstrotation.

6. In a machine for sticking the soles of footgcar, the combination of arotatable car rier, a plurality of fluid operated pressing devicesprojecting towards the centre of said carrier, a stationary workingcylinder with a piston therein, a controlling device for the feeding anddischarging of a'working fluid to said working cylinder and to one ofsaid pressing devices, a foot lever, for actuating saidcontrollingdevice, said carrier having circumferentially spaced holestherein, a pin projectable into a selected one of said holes to hold thecarrier against rotation, and a bellcrank connection between said pinand said piston. 1

7 In a machine for sticking the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressing carrier, astationary working cylinder, with a piston movable therein, means 0erated by said piston for locking said carrier against rotation, acontrolling cylinder having two openings therein for the inlet and theoutlet of a working fluid, two pistons arranged on a common piston rodand controlling said inlet and outlet openings by their movement, meansconnected to said piston rod for actuating said control pistons, and afluid supply connection between said control cylinder and one of saidpressin devices.

8. In a machine for stic 'ng the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressin devices,projecting towards the centre of said carrier, a stationary pivot,forming the axis of said carrier, said pivot having a passa e thereinconnected with a source of a'wor ing fluid, a plurality of conduits inthe hub of said carrier, communicating with said inder for fixing thesaid carrier in its different positions during the operation of thepressing devices.

9. In a machine for sticking the soles of footgear, the combination of arotatable carrier, a plurality of fluid operated pressing devices,projecting towards the centre of said carrier, a working cylinder forrotating said carrier, a piston in said cylinder, a. lever connected tosaid piston, a cam surface on said lever, a clamping member, articulatedto said lever, a rim secured to said carrier and adapted to be actedupon by said clamping member, a controlling device-for the feeding anddischarging of a working fluid to said working cylinder and means forcontrolling the feeding of the working fluid to the pressing devices.

10. In a machine for sticking the soles of footgear,the combination of arotatable carrier, a plurality of fluid operated pressing devicescarried thereby, fluid operated means for rotating said carrierstep-by-step and for signature.

ALBERT DEMNITZ.

passage one after the other by rotation of said carrier, conduits orpipes connecting said holes for feeding a working fluid to the saidpressing devices, a stationary working cylinder with a pistonthereinadapted' to be acted upon by the same fluid as the pressingdevices, a controlling device for the feeding and discharging of theworkin fluid to the said worln'ng cylinder, and a loc 'n member operableby the piston in said wor 'ng cyl-

